Holding(s) in Company

Radstone Technology PLC
17 October 2006

The Company has received the following notification:

                                                                         UBS AG
                                                       Legal & Compliance Europe
                                                            100 Liverpool Street
                                                                          London
                                                                        EC2M 2RH
                                                          Tel : [phone]
                                                           Fax: [phone]



The Company Secretary
Radstone Technology PLC
Tove Valley Business Park
Towcester
Northants
NN12 6PF

[phone]



16th October 2006





Dear Sir/Madam,



Section 198 Companies Act 1985



Pursuant to Section 198 of the Companies Act 1985 we write to inform you that as
at the close of its business on 12th October 2006, UBS AG, acting through its
business group and legal entities no longer had a notifiable interest in
Ordinary shares of Radstone Technology PLC.



If you require any further information concerning this notification, please
contact Louise Robinson in the EMEA Compliance Department of UBS AG London
Branch on Tel: [phone].





Yours faithfully





Paul Geraldine                                  Angela Huff
Director - Compliance                           Associate Director - Compliance


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